基于SWAT和遥感方法的黄土台塬区土壤水库均衡——以甘肃省陇东黄土董志塬为例

doi:10.7522/j.issn.1000-0240.2014.0083

冰川冻土 ›› 2014, Vol. 36 ›› Issue (3): 691-698.doi: 10.7522/j.issn.1000-0240.2014.0083

基于SWAT和遥感方法的黄土台塬区土壤水库均衡——以甘肃省陇东黄土董志塬为例

杨林山¹, 李常斌¹, 王帅兵^1,2, 杨文瑾²

1. 兰州大学资源环境学院, 甘肃兰州 730000;
2. 兰州大学西部环境教育部重点实验室, 甘肃兰州 730000

收稿日期:2013-12-12 修回日期:2014-03-30 出版日期:2014-06-25 发布日期:2014-07-16
作者简介:杨林山（1989-），男，甘肃榆中人，2012年毕业于兰州大学，现为硕士研究生，主要从事生态水文和水文模拟方面的研究.E-mail：yanglsh12@lzu.edu.cn
基金资助:
兰州大学中央高校基本科研业务费专项资金（lzujbky-2014-118）；国家自然科学基金项目（41001014）；高等学校博士学科点专项科研基金项目（2011021110011）资助

Water balance within soil water reservoir in the loess tableland by means of combination of SWAT model and remote sensing: A case study in the Dongzhi Loess Tableland of eastern Gansu

YANG Linshan¹, LI Changbin¹, WANG Shuaibing^1,2, YANG Wenjin²

1. College of Earth and Environment Science, Lanzhou University, Lanzhou 730000, China;
2. Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, Lanzhou 730000, China

Received:2013-12-12 Revised:2014-03-30 Online:2014-06-25 Published:2014-07-16
Contact: 李常斌，E-mail：licb@lzu.edu.cn E-mail:licb@lzu.edu.cn

摘要/Abstract

摘要： 以甘肃省陇东黄土董志塬为研究区，采用SWAT模型和遥感方法，就黄土台塬区地下水库均衡进行综合研究. 结果表明：黄土台塬区土壤水分负均衡常出现在5、6月份，该期水分亏缺不利于植被的健康稳定生长，是灌溉调节的主要时段. 1981-2010年间，气温升高使陆表蒸散需求增加，降水减少使土壤水库补给减少，二者共同导致台塬区土壤水库负衡态势的加重. 气候变化背景下，积极寻求外调水源是解决黄土台塬区水资源短缺问题的重要手段.

关键词: 土壤水库, 均衡, 黄土台塬

Abstract: In this study, the hydrologic model of SWAT and the remote sensing methods were combined to illustrate the dynamics of the soil water reservoir in the loess tableland. The Dongzhi Loess Tableland was selected as a study area to comprehensively and quantitatively determine the water balance of the soil water reservoir. It is found that a distinct monthly variation of water in the soil water reservoir and a soil water deficit takes place frequently in May and June, which restricts land surface ecology. Irrigation regulation ought to be especially considered in the two months. During the period from 1981 to 2010, increase of air temperature and decrease of precipitation had led to more evaporative and less recharge to the soil water reservoir, respectively. Both result in more negative water balance of the soil water reservoir in the area. It is verified that under the background of climate change, an overall plan for external water transfer into the area must be considered and implemented as soon as possible to deal with the water shortage problem.

Key words: soil water reservoir, equilibrium, loess tableland

中图分类号:

S152.7

杨林山, 李常斌, 王帅兵, 杨文瑾. 基于SWAT和遥感方法的黄土台塬区土壤水库均衡——以甘肃省陇东黄土董志塬为例[J]. 冰川冻土, 2014, 36(3): 691-698.

YANG Linshan, LI Changbin, WANG Shuaibing, YANG Wenjin. Water balance within soil water reservoir in the loess tableland by means of combination of SWAT model and remote sensing: A case study in the Dongzhi Loess Tableland of eastern Gansu[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2014, 36(3): 691-698.

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基于SWAT和遥感方法的黄土台塬区土壤水库均衡——以甘肃省陇东黄土董志塬为例

Water balance within soil water reservoir in the loess tableland by means of combination of SWAT model and remote sensing: A case study in the Dongzhi Loess Tableland of eastern Gansu

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